Question

Text 10: A projectile has an initial speed of 3.58 m/s when fired horizontally. When fired at an angle of 36° from the horizontal, what would be the vertical component of its velocity the moment it leaves the mechanism? A) 0 m/s B) 2.10 m/s C) 2.90 m/s D) 3.58 m/s Text 11: A spring, with a spring constant of 156 N/m, and a suspended 0.900 kg mass, are undergoing simple harmonic motion. What would the expected period be? A) 0.076 s B) 0.152 s C) 0.239 s D) 0.477 s Text 12: A group of students were performing the Newton's 2nd Law experiment. They graphed their measurements for the applied force to the cart vs. the acceleration of the cart and obtained a linear fit line that is represented by W^2 = Ff + ma. What physical quantity would the y-intercept of this graph represent? A) initial velocity B) mass of the cart C) force of friction D) acceleration of the cart Text 13: In the Uniform Circular Motion lab, the objective was to show that v^2 = (Fcr)/m produces a linear line which passes through the origin. If the applied centripetal force and the radius of the spinning object were kept constant, what would be the expected slope of a line for v^2 vs. 1/m as the mass of the spinning object is incrementally increased? A) Fc/m B) Fcr C) r/m D) 2πr/T

          Text 10: A projectile has an initial speed of 3.58 m/s when fired horizontally. When fired at an angle of 36° from the horizontal, what would be the vertical component of its velocity the moment it leaves the mechanism?
A) 0 m/s
B) 2.10 m/s
C) 2.90 m/s
D) 3.58 m/s

Text 11: A spring, with a spring constant of 156 N/m, and a suspended 0.900 kg mass, are undergoing simple harmonic motion. What would the expected period be?
A) 0.076 s
B) 0.152 s
C) 0.239 s
D) 0.477 s

Text 12: A group of students were performing the Newton's 2nd Law experiment. They graphed their measurements for the applied force to the cart vs. the acceleration of the cart and obtained a linear fit line that is represented by W^2 = Ff + ma. What physical quantity would the y-intercept of this graph represent?
A) initial velocity
B) mass of the cart
C) force of friction
D) acceleration of the cart

Text 13: In the Uniform Circular Motion lab, the objective was to show that v^2 = (Fc*r)/m produces a linear line which passes through the origin. If the applied centripetal force and the radius of the spinning object were kept constant, what would be the expected slope of a line for v^2 vs. 1/m as the mass of the spinning object is incrementally increased?
A) Fc/m
B) Fc*r
C) r/m
D) 2πr/T

Added by Alexander P.

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